Pump



Nov. 13 B923.

L. F. PONTBRIAND PUMP Original Filed Sept. 50, 1922 "fag/d in Luuis F.mnihvi n Patented Nov. 113, i923.

I STATE PUMP.

Application filed September 30, 1922, Serial No. 591,553. RenewedOctober 6, 1923.

To all whom it may concern:

Be it known that l, LOUIS FRANK Penn BRIAND, a citizen of the UnitedStates, residing at Highgate Center, in the county of Franklin and Stateof Vermont, have invented certain new and useful Improve ments in Pumps,of which the following is a specification, reference being had to theaccompanying drawings.

This invention relates to improvements in pumps and an important objectof the invention is to provide in pump a cylinder which is capable ofgeneral application.

At the present time. pump manufacturers, due to the fact that some pumpusers insist upon a wooden suction pipe whereas others prefer a metalsuction pipe, find it necessary to provide with each type of pump a pairof cylinders, one of which is adapted for connection with a metallicpipe and the other of which is adapted for use in con junction with awooden pipe. This, of course, leads to considerable expense which it isa purpose of this invention to eliminate.

A further object of the invention is to provide a device of thischaracter which is extremely simple in its construction and operation,durable in service, and a general improvement in the art.

These and other objects I accomplish by the construction and arrangementshown in the accompanying drawings wherein for the purpose ofillustration is shown a preferred embodiment of my invention and whereinlike reference characters designate like parts throughout.

In the drawings 2- Figure 1 is a sectional view taken through a pumpconstructed in accordance with my invention;

Figure 2 is a detail sectional View of the piston employed; and

Figures 3, 4: and 5 are detail sectional views showing different mannersof engaging the suction pipe to the lower end of the cylinder;

Figure 6 is a sectional View taken through a modified form of piston.

Referring now more particularly to the drawings, in which a pumpcylinder constructed in accordance with my invention is shown applied toa force pump standard, generally indicated at 10, the numeral 11indicates a pipe communicating with the air chamber 12 of the pump andthe numeral 13 generally designates the cylinder. The

l have shown this cylinder as connected with a metallic suction pipe.For this purpose the lower end of the cylinder may be provided withscrew-threads 16 either interiorly or exteriorly, the latter beingindicated at 16, These threads may be employed for securing to the lowerend of the cylinder either a collar 17 such as illustrated in Figure l,or a reducer coupling 18 such as illustrated in Figures 3 and 4. Wherethe flanged connection is employed, the suction pipe15 will, of course,be provided with a second flange 19 to be bolted to the flange 17, andbetween these flanges may be disposed a valve seat 20 having a valve 21of any desired construction. Where reducer couplings are employed, thevalve seat 20 will be held in position by these couplings.

In order that the cylinder 13 may accommodate a wooden suction pipe suchas illustrated in Figure 5, the lower end of the bore is tapered, asindicated at 22, for coaction with the tapered upper end 23 of thewooden suction pipe, the cylinder being forced down upon the suctionpipe. If desired, the collar 1'? may be employed with the wooden suctionpipe to prevent spreadingof the lower end of the cylinder when thesuction pipe swells as it becomes saturated with liquid. Within thecylinder is disposed a piston 24: provided with ring grooves 25 in whichare seated packing rings 26 similar to those employed on the pistons ofinternal combustion engines. The piston 24 is provided with a centralopening affording at its upper end a valve seat 27 for coaction with avalve 28. The lower surface of the piston is perfectly flat and plain inorder that the same may be employed for engaging a trip 29 formed on thevalve 21 to open this valve and drain the cylinder 13 of water. To theupper end of the piston is secured a cage 80 which is secured to thepump rod 31 in the usual manner.

The form of piston just described is preferably employed for pumping,oil, gas and the like. For the pumping of water I prefer to employ apiston such as disclosed in Figure 6. This p ston comprises an annularmember 32 of slightly less diameter than the cylinder within which it isemployed and having extending upwardly from the upper face thereof ayoke 32 provided with an opening 33 "for the reception of the pump rod31. The annular member 32 coacts witha second annular member 34 tomaintain therebetween a cup leather 35, the annular members beingclampedtogether upon the leather a of slightly greater s ze than theopening 32 and having the edge thereof next adjacent the clamping plate38 spaced therefrom, as indicated at 42, in order that the exposedsection of the valve leather 39 may act as a hinge. It is pointed outthat the plate 40 greatly rigidifies the valve leather and assists inthe proper setting thereof.

It is to be noted that the construction of the pump cylinder is suchthat a great amount of room is provided for the passage of fluid throughthe valves. It will furthermore be obvious that by employing a pistonand cylinder of the construction hereinbefore set forth in conjunctionwith the force pump structure, the device may be used as a lift pumpthrough a distance of approximately thirty-two feet and subsequentlyemployed as a force pump to elevate the water the remaining distance.In'addition, a cylinder constructed as shown may be employed either atthe end of a. suction lift or submerged as desired. Many changes beingpossible in the shape, size and arrangement otthe various partshereinbet'ore set forth, I do not limit myself thereto except ashereinafter claimed.

I claim 1. In a pump, a cylinder having an open lower end, the bore ofthe cylinder at the lower end thereof being tapered to permit theinsertion therein of a wooden suction pipe, said lower end of saidcylinder being provided with screw'-threads adapted for the reception ofa coupling member whereby a metal suction pipe may be attached to thecylinder.

2. A pump cylinder having an open lower end, the bore of the cylinder atthe lower end being tapered, the wall of the cylinder being providedinteriorly and exteriorly with screw-threads as and for the purpose setforth. 7 i i In testimony whereof I hereunto affix my signature.

LOUIS FRANK PONTBRIAND.

